CN219774181U

CN219774181U - Gas extraction device

Info

Publication number: CN219774181U
Application number: CN202320854692.0U
Authority: CN
Inventors: 张兴润; 张永斌; 叶川; 白雁楠; 郭书明; 张盼盼
Original assignee: Shanxi Baisi Zhongcheng Technology Co ltd; Taiyuan University of Technology; Shanxi LuAn Group Yuwu Coal Industry Co Ltd
Current assignee: Shanxi Baisi Zhongcheng Technology Co ltd; Taiyuan University of Technology; Shanxi LuAn Group Yuwu Coal Industry Co Ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-09-29
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a gas extraction device, which comprises: the base is fixedly connected with the mounting table at the center of the top of the base, is fixedly connected with lifting rails at four corners of the top of the mounting table, and is provided with a lifting mechanism inside the lifting rails; when drilling, with the locating tube deep into underground to confirm the direction and the degree of depth of taking out, this device is through the rotation of lift lead screw, drives the height of mounting panel and adjusts, provides decurrent thrust to the locating tube through the mounting panel, makes the decline speed of locating tube accelerate, simultaneously, according to the height and the angle of mounting panel, can prescribe a limit to the degree of depth and the angle of locating tube, realizes accurate position determination, with the influence of adaptation ground stress variation to gas seepage flow and migration.

Description

Gas extraction device

Technical Field

The utility model relates to the technical field of gas extraction, in particular to a gas extraction device.

Background

At present, the main means of coal mine gas extraction is to drill holes in coal beds and gas gathering areas, connect the drill holes on special pipelines, extract the gas in the coal beds and goaf to the ground for use by extraction equipment or discharge the gas into a total return air pipe, and extract the gas, which is an important measure for reducing the gas emission amount in the extraction process, preventing the gas from overrun and accumulation and preventing the gas explosion and coal and gas outburst accidents, and can also be changed into treasures, and the gas is used as a coal associated resource for development and utilization.

The gas extraction device applied to the coal mine at the present stage is basically fixed, and the gas in the coal seam or the goaf is extracted by extending the extraction pipeline into the drill hole, but the flexibility and the adaptability of the gas extraction device are improved due to the influence of the ground stress on the gas seepage characteristic and the gas migration rule and the different geology and topography changes of the coal mining area, and the capability of the existing gas extraction device for adapting to the environment changes is poor, so that the use of different coal mining environments is difficult to meet.

Disclosure of Invention

The utility model aims to provide a gas extraction device, which solves the problems of the operation flexibility and the application environment adaptability of the gas extraction device due to the influence of the ground stress change on the gas seepage characteristic and the gas migration rule and the different geology and topography changes of a coal mining area.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a gas extraction apparatus comprising: the base is fixedly connected with the mounting table at the center of the top of the base, is fixedly connected with lifting rails at four corners of the top of the mounting table, and is arranged in the lifting mechanisms; the lifting mechanism comprises: the lifting device comprises a lifting screw rod, a first bevel gear, a second bevel gear, a rotating rod, a first gear, a rotating shaft, a rotating motor, a sliding block, a mounting plate and a pumping assembly, wherein the lifting screw rod is rotationally connected to the inner center of a lifting rail, the first bevel gear is fixedly connected to the inner center of the lifting screw rod, the first bevel gear is arranged on the upper portion of the bottom of the lifting screw rod, the second bevel gear is meshed with the first bevel gear, the second bevel gear is meshed with the second bevel gear, the rotating shaft is arranged on the rear center of the second gear, the rotating motor is arranged on the rear side of the rotating shaft, the sliding block is connected to the lower portion of the inner top of the lifting rail, the mounting plate is fixedly connected to the side, close to the center of the base, of the sliding block, and the pumping assembly is arranged on the center of the top of the mounting plate.

The extraction assembly comprises: the air pump is fixedly installed in the center of the top of the mounting plate, the air pump is arranged in the mounting groove in the center of the bottom of the air pump, the lifting air cylinder is arranged at the top of the inside of the mounting groove, the extraction pipe is arranged at the bottom of the lifting air cylinder, the air pump is fixedly connected with the connector in the center of the bottom of the mounting plate, the positioning pipes are movably installed at the bottom of the connector, and the positioning mechanisms are equidistantly distributed in the positioning pipes.

The positioning mechanism comprises: the traction block is fixedly connected to the outer surface of the extraction pipe, the pushing frame is hinged to one side, away from the center of the extraction pipe, of the traction block, the positioning block is hinged to one side, away from the center of the extraction pipe, of the pushing frame, and the positioning grooves are distributed in the positioning pipe at equal intervals.

The rotating rod forms a rotating structure through the first gear, the second gear and the rotating motor, and the lifting screw rod forms a rotating structure through the rotating rod, the first bevel gear and the second bevel gear.

The outer surface of the bottom of the extraction pipe is the same as the outer surface of the bottom of the positioning pipe in diameter, and the extraction pipe forms a lifting structure through a lifting cylinder.

The gas extraction device further comprises: the support legs are fixedly connected to the four corners of the bottom of the base, the support legs are arranged on the left and right ends of the bottom of the base, which are far away from the center, and the regulating grooves are arranged in the front and rear sides of the bottom of the base, the regulating screws are arranged in the regulating grooves, the regulating blocks are connected to the front and rear ends of the inside of the regulating grooves in a sliding manner, the lifting frame is hinged to the bottom of the regulating blocks, and the movable wheels are hinged to the bottom of the lifting frame.

The positioning block penetrates through the inside of the positioning pipe, and the positioning block forms a horizontal moving structure with the positioning groove through the pushing frame and the traction block.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the gas is extracted, the positioning pipe can be deeply penetrated into the ground, the gas extraction position and depth are adjusted, the height of the mounting plate is driven to be adjusted through the rotation of the lifting screw rod, then the downward thrust is provided for the positioning pipe through the mounting plate, so that the descending speed of the positioning pipe is accelerated, meanwhile, the depth of the positioning pipe can be limited according to the height of the mounting plate, and the purpose of accurately determining the extraction direction and position is realized.

2. According to the utility model, the lifting cylinder drives the position of the extraction pipe to descend, the positioning pipe can protect the extraction pipe from the outside, so that the damage of an external object to the extraction pipe is avoided, and the gas extraction efficiency is improved.

3. According to the utility model, through the design of the movable wheels at the bottom of the lifting frame of the extraction device, the integral movement of the gas extraction equipment is realized, and the use flexibility of the equipment is enhanced.

4. According to the utility model, in the descending process of the extraction pipe, the pushing frame pushes the positioning block to move to one side far away from the center of the positioning pipe, and when the extraction pipe is inserted into a coal bed or soil outside the positioning pipe, a certain support is provided for the positioning pipe, so that the situation that the positioning pipe is deviated due to vibration of the extraction pipe and the influence of geological or ground stress change in the using process is avoided, the extraction device can be suitable for different ground stresses or different geological and ground environments, and the stability and applicability of the extraction device are enhanced.

Drawings

Fig. 1 is a schematic structural diagram of a gas extraction device.

Fig. 2 is a schematic bottom view of a gas extraction device.

Fig. 3 is a schematic diagram of a gas extraction assembly of the gas extraction device.

Fig. 4 is an enlarged view of a portion a in fig. 1.

Fig. 5 is an enlarged view of a portion B in fig. 2.

In the figure: 1. a base; 2. a mounting table; 3. lifting rails; 4. lifting the screw rod; 5. a first bevel gear; 6. a second bevel gear; 7. a rotating lever; 8. a first gear; 9. a second gear; 10. a rotating motor; 11. a sliding block; 12. a mounting plate; 13. an air pump; 14. a lifting cylinder; 15. a drainage pipe; 16. a connector; 17. a positioning tube; 18. a traction block; 19. pushing a frame; 20. a positioning block; 21. a positioning groove; 22. support legs; 23. a multi-section adjusting screw rod; 24. an adjusting block; 25. a moving wheel; 26. and a lifting frame.

Detailed Description

The technical solutions of the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, an embodiment of the present utility model provides a gas extraction device, including:

the base 1, fixed connection is in the mount table 2 of base 1 top center department, and fixed connection is in the elevating system of the four angles in mount table 2 top 3, sets up in elevating system inside 3.

The lifting mechanism comprises: the lifting device comprises a lifting screw rod 4, a first bevel gear 5, a second bevel gear 6, a rotating rod 7, a first gear 8, a second gear 9, a rotating shaft, a rotating motor 10, a sliding block 11, a mounting plate 12 and a pumping assembly, wherein the lifting screw rod 4 is rotatably connected to the inner center of the lifting rail 3, the first bevel gear 5 is fixedly connected to the upper portion of the bottom of the lifting screw rod 4, the second bevel gear 6 is meshed with the first bevel gear 5, the rotating rod 7 is fixedly connected to the second bevel gear 6, the rotating rod 7 is fixedly connected to the rotating rod 7, the first gear 8 is meshed with the bottom of the first gear 8, the rotating shaft is arranged at the center of the rear side of the second gear 9, the rotating motor 10 is arranged at the rear side of the rotating shaft, the sliding block 11 is connected to the lower portion of the top of the inner portion of the lifting rail 3, the mounting plate 12 is fixedly connected to the sliding block 11, and the pumping assembly is arranged at the center of the top of the mounting plate 12.

The rotating rod 7 forms a rotating structure through a first gear 8, a second gear 9 and a rotating motor 10, and the lifting screw rod 4 forms a rotating structure through the rotating rod 7, the first bevel gear 5 and the second bevel gear 6; the height of the mounting plate 12 is adjusted by the rotation of the lifting screw 4, and a downward thrust is provided to the positioning tube 17 during the drilling operation, so that the lowering speed and the lowering depth of the positioning tube 17 are adjusted.

The extraction assembly comprises: the air pump 13 is fixedly arranged at the center of the top of the mounting plate 12, the mounting groove is formed in the center of the bottom of the air pump 13, the lifting air cylinder 14 is arranged at the top of the inside of the mounting groove, the extraction pipe 15 is arranged at the bottom of the lifting air cylinder 14, the connector 16 is fixedly connected at the center of the bottom of the mounting plate 12, the positioning pipes 17 are movably arranged at the bottom of the connector 16, and the positioning mechanisms are equidistantly distributed in the positioning pipes 17.

The diameter of the outer surface of the bottom of the extraction pipe 15 is the same as that of the outer surface of the bottom of the positioning pipe 17, and the extraction pipe 15 forms a lifting structure through the lifting cylinder 14.

The lifting cylinder 14 drives the extraction pipe 15 to descend, and the positioning pipe 17 can protect the extraction pipe 15 from the outside.

The positioning mechanism comprises: the traction block 18 is fixedly connected to the outer surface of the extraction pipe 15, the pushing frame 19 is hinged to one side, far away from the center of the extraction pipe 15, of the traction block 18, the positioning block 20 is hinged to the pushing frame 19, far away from one side, far away from the center of the extraction pipe 15, and the positioning grooves 21 are distributed in the positioning pipe 17 at equal intervals.

The positioning block 20 penetrates through the inside of the positioning tube 17, and the positioning block 20 and the positioning groove 21 form a horizontal moving structure through the pushing frame 19 and the traction block 18.

In the descending process of the extraction pipe 15, the extraction pipe 15 is continuously inserted into the soil outside the positioning pipe 17, under the cooperation of the traction blocks 18 and the pushing frame 19, the extraction pipe 15 is ensured to move in a certain range in the horizontal direction inside the positioning pipe 17, the stability of the extraction pipe 15 is enhanced, and meanwhile, the positioning block 20 extends out of the positioning pipe 17 from the positioning groove 21, and the stability of the positioning pipe 17 in the working process is enhanced.

The extraction device further comprises supporting legs 22 fixedly connected to the bottom of the base 1 and close to four corners, an adjusting groove arranged at the bottom of the base 1 and far away from the center, a plurality of sections of adjusting screw rods 23 arranged inside the adjusting groove, adjusting blocks 24 connected to the front end and the rear end of the adjusting groove in a sliding mode, a lifting frame 26 hinged to the bottom of the adjusting block 24, and a movable wheel 25 hinged to the bottom of the lifting frame 26.

When the utility model is used, the position of the equipment is moved by the moving wheel 25, after the equipment is moved to a designated position, the position of the adjusting block 24 is driven to move relatively by the rotation of the multi-section adjusting screw rod 23, then the height of the moving wheel 25 is driven to rise by the action of the lifting frame 26, and the whole device is fixed by the supporting legs 22.

Starting a rotating motor 10, driving a second gear 9 to rotate through a rotating shaft connected with the rotating motor 10, driving a first gear 8 to rotate through a meshing structure, driving a rotating rod 7 and a second bevel gear 6 to rotate through the first gear 8, driving a first bevel gear 5 and a lifting screw 4 to rotate through the meshing structure, and driving the position of a mounting plate 12 to descend when the lifting screw 4 rotates because the lifting screw 4 penetrates through the sliding block 11, and providing downward thrust to a positioning tube 17 through the mounting plate 12, so that the descending speed of the positioning tube 17 is accelerated, and simultaneously limiting the depth of the positioning tube 17 according to the height of the mounting plate 12, thereby realizing the purpose of accurately determining the extraction position;

the lifting cylinder 14 is started, the lifting cylinder 14 drives the position of the extraction pipe 15 to descend, then the extraction pipe 15, the traction block 18 and the pushing frame 19 are matched to use, the locating block 20 is pushed to move to one side far away from the center of the locating pipe 17 in the locating groove 21, the extraction pipe 15 is inserted into the soil outside the locating pipe 17, meanwhile, the locating block 20 stretches out of the outer wall of the locating pipe 17 to give the locating pipe 17 a supporting point, the situation that the locating pipe 17 deviates due to the influence of vibration and the like in the using process is avoided, the locating pipe 17 can be suitable for fixing the bottoms of different geology, and the applicability of equipment is enhanced.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A gas extraction device, comprising: the lifting device comprises a base (1), a mounting table (2), a lifting rail (3) and a drawing assembly, wherein the mounting table (2) is fixedly connected to the center of the top of the base (1), the lifting rail (3) is fixedly connected to four corners of the top of the mounting table (2), and a lifting mechanism is arranged in the lifting rail (3); the lifting mechanism comprises: the lifting screw rod (4), the first bevel gear (5), the second bevel gear (6), the rotating rod (7), the first gear (8), the second gear (9), the rotating motor (10), the sliding block (11) and the mounting plate (12), the lifting screw rod (4) is rotationally connected to the inner center of the lifting rail (3), the first bevel gear (5) is fixedly connected to the position, which is close to the center of the base (1), of the first bevel gear (5), the second bevel gear (6) is meshed with the rotating rod (7) and is fixedly connected to the position, which is close to the center of the base (1), of the second bevel gear (8), the second gear (9) is meshed with the bottom of the first gear (8), the rotating motor (10) and the rotating motor (10) are rotationally arranged at the center of the rear side of the second gear (9), the sliding block (11) is slidingly connected to the inner position, which is close to the bottom of the lifting rail (3), of the sliding block (12) is fixedly connected to the side, which is close to the center of the base (1); the extraction assembly is arranged at the center of the top of the mounting plate (12).

2. The gas extraction apparatus of claim 1, wherein the extraction assembly comprises: the device comprises an air pump (13), a lifting cylinder (14), a suction pipe (15), a connector (16), a positioning pipe (17) and a positioning mechanism; the air pump (13) fixed mounting in mounting panel (12) top center, lift cylinder (14) set up in the inside mounting groove in air pump (13) bottom center, take out adopt pipe (15) set up in lift cylinder (14) bottom, connector (16) fixed connection in mounting panel (12) bottom center, locating tube (17) movable mounting in connector (16) bottom, positioning mechanism equidistance distribute in the inside of locating tube (17).

3. The gas extraction apparatus of claim 2, wherein the positioning mechanism comprises: the device comprises a traction block (18), a pushing frame (19), a positioning block (20) and a positioning groove (21); traction block (18) fixed connection in extraction pipe (15) surface, push away frame (19) articulated in traction block (18) keep away from extraction pipe (15) center one side, locating piece (20) articulated in push away frame (19) keep away from extraction pipe (15) center one side, constant head tank (21) equidistance distribute in inside positioning tube (17).

4. A gas extraction device according to claim 1, characterized in that the rotating lever (7) forms a rotating structure by means of a first gear (8) and a second gear (9) and a rotating motor (10); the lifting screw rod (4) forms a rotating structure through a rotating rod (7), a first bevel gear (5) and a second bevel gear (6).

5. A gas extraction device according to claim 2, characterized in that the diameter of the outer surface of the bottom of the extraction pipe (15) is the same as the diameter of the outer surface of the bottom of the positioning pipe (17), and the extraction pipe (15) forms a lifting structure through a lifting cylinder (14).

6. The gas extraction device according to claim 1, further comprising supporting legs (22) and moving wheels (25), wherein the supporting legs (22) are fixedly connected to four corners of the bottom of the base (1), adjusting grooves are formed in the left and right ends, the front and rear sides and the left and right ends, far away from the center, of the bottom of the base (1), a plurality of sections of adjusting screw rods (23) are arranged in the adjusting grooves, the adjusting blocks (24) are slidably connected to the front and rear ends of the inner portions of the adjusting grooves, the lifting frames (26) are hinged to the bottoms of the adjusting blocks (24), and the moving wheels (25) are hinged to the bottoms of the lifting frames (26).

7. A gas extraction device according to claim 3, wherein the positioning block (20) penetrates through the inside of the positioning tube (17), and the positioning block (20) and the positioning groove (21) form a horizontal moving structure through the pushing frame (19) and the traction block (18).